Sugar-cane and like mill.



Patented Aug. 26, 1913.

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J. & W. A. MoNBIL. SUGAR CANE AND LIKE MILL. APPLICATION FILED FEB. 5,1913.

1,071,646. Patented Aug. 26, 1913.

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UNITED STATES PATENT OFFICE.

J OHN McNEIL AND WILLIAM ARNOTT MGNEIL, OF GOVAN, GLASGOW, SCOTLAND.

' SUGAR-CANE AND LIKE MILL.

Specification of Letters Patent.

Patented Aug. 26,1913.

To all whom. it may concern:

Be it known that we, JoI-IN McNmL and l/VILLIAM A No'rT MoNnIL, subjectsof the King of Great Britain and Ireland, and residents of Govan, in thecity and county of Glasgow, Scotland, have invented certain new anduseful Improvements in Connection WVith Sugar-Cane and Like Mills, ofwhich the following is the specification.

Hitherto in sugar-cane and like mills the roll bearing caps have beensecured upon the housings by lengthy bolts passing through the housingsto opposed caps, or securely anchored in the housings and foundation.Obviously, such a construction is expensive. It is also cumbrous inassembling or dismantling.

The invention has for its object to provide a manner of securing thecaps which is at least equally efiective and by which these disabilitiesare avoided.

According to the invention the ends of the cap and the adjacent sides ofthe usual projecting parts of the housing in which the roll-bearinaperture is formed are so counterpartly ormed that they engage oneanother, thus resisting bursting pressure. Grooves are formed across orthrough adj acent parts of the cap and housings to receive keys, boltsor the like which secure the caps in position and at the same time actto resist outward thrust. With the improved construction thus providedthe caps, while effectively resisting both outward thrust and burstingpressure, are much more readily placed in position or removed than ispossible with the known constructions in which are used lengthy securingbolts passing through the housings. The caps may be formed to receiveany of the usual types of hydraulic pressure regulating gear, oralternatively may be provided with distance pieces between them and theouter halves of the bearing bushes. It is obviously necessary incarrying out this manner of avoiding the use of securing bolts that amaterial other than cast iron (for instance cast steel) be used forhousings and caps in order that adequate strength may be attainedwithoutundue size and weight.

The invention may be carried out in numerous ways without departing fromthe essential features thereof.

Figure 1, Sheet 1, and Fig. 2', Sheet 2,

.are vertical sections showing two examples of the invention as appliedto the bearing aperture of one of the side rolls of a sugarcane mill. r

In carrying out the invention according to the illustrative exampleshown in Fig. 1, the cap 0 extends laterally beyond the usual projectingparts a of the housing in which the roll-bearing aperture is formed, andhas on its ends inwardly projecting lugs cl embracing the parts a thusreinforcing them against bursting pressure. The adjacent faces of thelugs d and of the projecting parts a of the housing have formed acrossthem grooves a. When the cap 0 is placed on the housing, keys 9 aredriven into the conjoint grooves, the keys not only securing the cap inposition, but enabling it to effec tively resist outward thrust. In thisexample the pressure regulating gear is of usual screw spindle type 9.The inner end of the spindle carries a distance piece it and bears on awasher 7' between the distance piece and the bearing bush 7? of the roll(not shown).

The example shown in Fig. 2 differs only from that hereinbeforedescribed in that the central distance piece it is in a piece with thecap 0, and the conjoint grooves n, to receive the keys p, are formedacross the adjacent faces of the distance piece and the aperture in thehousing into which the distance piece it projects.

What we claim is 1. In a mill of the character described, roll housingsapertured for roll bearings, projections on the parts of the housings inwhich the roll-bearing aperture is formed, a roll housing cap andprojections thereon counterpart to and engaging the housing projections,said cap being apertured to permit the entry of pressure regulatingmeans into the roll bearing aperture beneath the cap, grooves inadjacent parts of the housing and cap, and means engaged in said groovesfor holding the cap in position on the housing.

2. In a mill of the character described, roll housings apertured forroll bearings, projections on the parts of the housings in which theroll-bearing aperture is formed, a roll housing cap extending laterallybeyond the projecting parts of the housing, inwardly projecting lugs onthe cap embracing these projecting parts of the housing, said cap beingapertured to permit the entry of pressure regulating means into the rollbearing aperture beneath the cap and engaging means between the adjacentportions of the inwardly projecting lugs on the cap and the projectingparts of the housing for securing said cap upon the housing.

3. In a mill of the character described, r011 housings apertured forroll bearings, projections on the parts of the housings in which theroll-bearing aperture is formed, a roll housing cap extending laterallybeyond the projecting parts of the housing, inwardly projecting lugs onthe cap embracing these projecting parts of the housing, said cap beingapertured to permit the entry of pressure regulating means into the rollbearing aperture beneath the cap, registering grooves in the adjacentfaces of the projecting parts of the housing and the inwardly projectinglugs on the cap and looking keys in said grooves for securing said cap'in position on the housing.

4. In a mill of the character described, r011 housings apertured forroll bearings, pro jections on the parts of the housings in which theroll-bearing aperture is formed, a roll housing cap and projectionsthereon}! counterpart to and engaging the housing projections, apressure-regulating distance piece on the inner side of and in one withthe cap, registering grooves in the adjacent faces of the projectingparts of the housing and the pressure-regulatin distance piece on thecap and keys engage in said grooves to hold the cap in position on thehousing.

In testimony whereof We have signed 0111' names to this specification,in the presence of two subscribing witnesses. j

JOHN MoNEIL. WILLIAM ARNOTT MoNEIL.

Witnesses:

DAVID FERGUSON, JAMES EAGLESOM.

copies at this patent may be obtained for me cents each, by addressingthe Commissioner' of Patent,

Washington, D. 0."

